Injector



(MdGL) A' 8 6 INJEGTOR.

No. 516,231. Patented Mar. 13, 1894.

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mi NAIIOI'AL UNITED STATES PATENT OFFICE.

ALEXANDER SIMPSON, OF SORANTON, AND MATHIAS SPEICHER, OF ARCH- BALD, PENNSYLVANIA.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 516,231,dated March 13, 1894. Application filed February 24, 1893. Serial No. 463.607. (Model.)

To a/ZZ whom it may concern:

Be 1t known that we, AALEXANDER SIMPSON,

residing at Scranton, and MATHIAS SPEICHER,

residing at Archbald, in the county of Lackawanna, State of Pennsylvania, citizens of the United States, have invented certain new and useful Improvements in Injectors; and we do declare the following to be a full, clear, and exact description of the invention, su ch as will 1o enable others skilled iu the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of this specification. Our invention consists in a new and improved combined exhaustand live-steam inject-or, in which are comprised several novel and valuable features; and the invention will be hereinafterfully described and claimed. Referring to the accompanying drawings, in which the same let-ters of reference indicate corresponding parts in the several vlewsz-Figure 1 is a central longitudinal sectional view of our injector. Fig. 2 is a trans- 5 verse sectional View, taken on the plane indicated by line 2 2 on Fig. l. Fig. 3 is a transverse sectional view taken on the plane indicated by linev 3 3, Fig. l. Fig. 4 illustrates in detail the water tube. Fig. 5 is a transverse sectional view taken on the plane indicated by line 5 5, Fig. l.

Referring to the several parts by their letters of reference, the shell or outer casing G of the injector is formed at its upper end with 3 5 the anged exhauststeam opening Il, and on the opposite side with the threaded live-steam opening I; the opening Hbeing suitably connected to receivethe exhaust-steam through a conducting-pipe having an ordinary cock, while theopening I'is connected to receive the live-steam through a connectin g-pi pe having a cock; by which arrangement the injector can be worked either'by exhaustor livesteam.

.I indicates the water-supply opening the inj ector being supplied with water :from a street main or from a reservoir; L the overflow opening, C the body ofthe suction and combining tube, and K the delivery opening at the lower 5o end of the shell.

The above parts are similar to those described in our Patent No. 490,590, and need not therefore be described in detail.

D indicates our novel water-tube, which is threaded exteriorly at d to adapt it to be 5 5 screwed into the shell G just below the level of the water-supply opening J, as shown, and is threaded interiorly at its lower end, at d', where the threaded upper end of the combining tube C is screwed into it. This wa- 5o ter-tube is formed at its upper end with the conical opening D', and the hollow upper part D2, while in its lower body-portion Da are formed the annular series of openings c, while an annular flange, E, extends up at the inner side of said openings. It will further be seen that the lower inwardly-inclined end of the conical opening D in the top of the water-tube extends in beyond the vertical line of the flange E, as clearly shown in the 7o drawings.

The conical steam-tube, B, is formed with a cylindrical upper end, B', adapted to fit, and be adjusted in, the cylindrical part of shell G just above the water-supply opening J; anda packing-ring P, is secured in an annular recess B2 formed in this upper end of the steam-tube, which eiectually prevents the passage of steam down around the exterior of the adjustable steam-tube. 8o

A indicates the dividing and steam spindle, which passes through a stufng box G at the top of the shell, and is threaded at a,

where it passes through a threaded bearing,

to adapt it to be adjusted up and down. The v conical lower end of the steam-tube, B, passes down through the conical opening D of the water-tube to a point near the bottom of said water-tube; and the tapering lower end of the spindle A passes down through the steam- 9o tube into the conical upper end of the combining-tube C; and the upper end of the steam-tube B is connected by the arms B3 to the spindle A, so that the steam-tube can be raised or lowered by turning the spindle, and 9 5 thus regulate the size of the opening between the conical steam-tube and the conical opening D in the top of the water-tube; the steam tube thus forming a regulating-valve for the water tube.

It will now be seen, that before the working of the injector the Water entering through the supplyppening .l will flow around the edge of the conical opening D in the top of the water tube, as indicated by the arrows l ou Fig. l, and down through the openings c into the space surrounding the combiningtube C and thence through the overflow opening L; while as soon as the steam is turned on and a vacuum formed in the combiningtube, the water will be drawn through the conical opening D', around the conical lower end of the steam-tube, directly into the upper end of the combining-tube C, as shown by the arrows 2.

The spindle A is formed with a central opening, M, extending from its lower end up to a point m near its upper end, where it opens through the side of the spindle, as shown; the spindle at this point passing through a small live-steam chamber, N, formed on the top of shell G, and which is suitably connected by a conducting-pipe to receive the over-pressure of live steam when there is a boiler pressure of over one hundred pounds. that by this construction we not only effectually prevent the backow of steam through the injector, but that when the boiler pressure rises above one hundred pounds this surplus steam will pass down through the hollow spindle A and be discharged from the lower end of the same into the combining-tube C, thus assisting,instead of retarding, the oper* ation of the injector.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

l. An injector comprising the shell formed with the openings for both exhaust and live steam,the water-supply opening, the delivery opening, and the overflow, the combining tube, the conical steam-tube, and a dividing spindle, and the watentube formedwith the hol- 10W upper part, the annular series of openings, the annular ange extending up at the inner side of said openings, and the conical top opening the lower end of which extends in beyond the vertical line ot' said annular Han ge, substantially as set forth.

2. An injector comprising the shell formed It will-be seen' with the openings for both exhaust and live steam, the water-supply opening, the delivery opening, and the overiiow, the combining tube, the water-tube secured at the upper end of the same, the steam-tube,thelive-steam chamber at the top of the shell, suitably connected with the boiler, and the hollow dividing spindle extending through said chamber and having its bore communicating therewith through a side opening, substantially as and for the purpose set forth.

3. An injector comprising the shell formed with the openings for live and exhaust steam, the water-supply opening, the delivery opening,and theovertlow, the combining tube,the herein described water-tube, the movable steam-tube having the conical lower part, and the adjustable dividing spindle extending through and connected with said movable steam-tube; substantially as and for the purpose set forth.

4. The herein-described injector, comprising the shell formed with the openings for both exhaust and live steam, the watersupply opening, the delivery opening, and the overflow, the combining tube, the herein-described water-tube, the movable stea1n-tube, the livesteam chamber formed at the Lipper end of the shell and suitably connected with the boiler, and the adjustable hollow dividing spindle, connected to said movable steamtube, and passing through said live-steam chamber with the upper end of its bore opening into said chamber; substantially as set forth.

In testimony whereof we afiix our signatures in presence ot' witnesses.

ALEX. SIMPSON. MATHIAS SPEICHER.

Vitnesses as to the signature of Alex. Simpson:

C. S. VoN SToRcI-I, C. W. Pannen. Witnesses as the signature of Mathias Speicher:

JOHN BECK, PORTER ESTRUTH. 

